smelting is the process of

Question

Smelting is the process of

Options:

A . Removing the impurities like clay, sand etc. from the iron ore by washing with water

B . Expelling moisture, carbon dioxide, sulphur and arsenic from the iron ore by heating in shallow kilns

C . Reducing the ore with carbon in the presence of a flux

D . All of the above

Answer: Option C
Explanation :

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